RTD’s SSD24200HR high speed SSD storage module is based on the M.2 format (formerly called Next Generation Form Factor, or NGFF). Two M.2 Socket 3 interfaces leverage the PCIe/104 Type 2 connector, allowing the inserted devices to utilize a PCIe x4 link or SATA connection for data transfer to and from the host CPU.

The Non-Volatile Memory Express protocol (NVMe) enables high speed data transfer from the CPU’s PCIe x4 connection to the SSD device at theoretical transfer rates up to 985 MB/s per lane (PCIe revision 3.0). These low latencies make the SSD24200HR the perfect candidate for edge computing applications. Pair the SSD24200HR with RTD’s 25 MSPS data acquisition module (DM34216HR), and continuous data from four high speed A/Ds can simultaneously be written to SSD via the PCIe x4 connection without losing any data.

The dual M.2 sockets of the SSD24200HR enable a shorter stack height over traditional PCIe/104 storage technologies, making it particularly attractive to SWaP- sensitive applications which are often limited to one 2.5” SATA drive per board.

For applications where only one M.2 socket is required, RTD offers the SSD24100HR single socket ordering option.

Key Features

PC/104 form factor

PCIe/104 stackable bus structure

PCIe Type 2 expansion bus

PCI pass-through expansion bus

High speed SSD storage

Up to two M.2 sockets in the socket 3 configuration (M key) support SATA and PCI Express SSDs

Each socket support one PCI Express x4 link and one SATA link (the interface is selected by the device inserted into the socket)

Compliant with PCI Express M.2 Specification Revision 1.1

M.2 Device Specifications

The options below show specifications for two devices from Apacer. Note that the SSD24x00HR is compatible with M.2 Socket 3 compliant devices from a variety manufacturers. If you are interested in ordering this M.2 carrier with specific devices installed, please contact RTD Sales.

NMVe M.2 (Apacer PM110-M280)

Sequential read up to 2,780 MB/sec

Sequential write up to 1,405 MB/sec

Burst read/write: 4GB/sec

SATA M.2 (Apacer SM230-M280)

Sequential read up to 480 MB/sec

Sequential write up to 490 MB/sec

Burst read/write: 600MB/sec

Software

SATA SSDs natively supported through the AHCI driver

PCIe Express SSDs supported through NVMe:

Natively supported in Linux 3.x (3.3 and newer) and 4.x Kernels

Natively supported in the latest updates for Windows 7 and 10 (32-bit and 64-bit)

NVMe boot permitted when supported by the BIOS of the host cpuModules or if the selected NVMe device has an option ROM onboard